Sara Kittelmann was born in Neustadt, Lower Saxony. She grew up in Hamburg and completed her training as men's tailor at the Hamburg State Opera. This was followed by several years as apprentice and costume assistant at the Hamburg State Opera, Basel Theatre and the Ruhrtriennale. Sara Kittelmann has been working as a freelance costume designer since 2007, with directors such as Christoph Marthaler, Christiane Pohle, Elias Perrig and Marco Štorman, as well as with the photographer Andreas Mühe. She designs costumes for drama and opera productions as well as for photo and music projects, and has since worked at the Deutsches Schauspielhaus Hamburg, Schauspielhaus Zürich, Theater Basel, Staatstheater Stuttgart, Bavarian State Opera and Munich Kammerspiele.